The Association Between Air Pollution and Mental Health

People who live in the most polluted streets might also be the same people who have so the lowest income and other things that are putting them at risk. Our study, by design, could not determine cause and effect. So does tat ain a way that there could be almost some good news here? Because if you can then cut the level of air polution, which of course people want to do, then would you expect to see a cut in the numbers of people with mental health problems?